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Zinc soaps are well known process additives in the rubber industry, and show their best effects as the primary lubricant in NR and SBR compounds. Working as internal lubricants, zinc soaps increase the polymer/polymer or polymer/filler flow through the formation of micelles. Additionally, zinc soaps have a slight cure activation effect and often increase the stability of cured NR compounds.

Struktol® my A 50 P
  • Zinc soaps of unsaturated fatty acids
  • Light coloured pastilles

Packaging: 20 kg bags
Density: 1050 kg/m³
Melting point: 100 °C
Dosage: 1 - 5 phr

  • Reduces compound viscosity and gives better flow properties with internal lubrication
  • Not suitable for halogen-containing elastomers
Struktol® my A 60
  • Soaps of unsaturated fatty acid derivates (mainly zinc soaps)
  • Beige pastilles

Packaging: 20 kg bags
Density: 1160 kg/m³
Dropping point: 85 °C
Dosage: 1 - 5 phr

  • Reduces compound viscosity and increases flow properties and internal lubrication
  • Suitable for use in softer compounds or compounds with low mixing temperatures
Struktol® my EF 44
  • Blend of fatty acid derivates (mainly zinc soaps)
  • Yellowish pastilles

Packaging: 20 kg bags
Density: 1070 kg/m³
Dropping point: 95 °C
Dosage: 1 - 3 phr

  • Excellent flow promoter for compounds with high level of white fillers (silica, chalk, clay, etc.)
  • Process additive for all kinds of non-halogenated polymers
  • Improves dispersion of fillers (especially minerals fillers) and has beneficial influence on batch-to-batch uniformity
  • Decreases the tendency of re-agglomeration of silica
Struktol® my GTI
  • Zinc soaps combined with fatty acid esters and inorganic dispersing agent
  • Beige pastilles

Packaging: 20 kg bags
Density: 1100 kg/m³
Dropping point: 103 °C
Dosage: 3 - 5 phr

  • Fast incorporation and improved dispersion of silica, highly reinforcing fillers and also inactive fillers
  • Especially suitable for tire tread compounds where fast mixing and good batch off handling is required

The increased scrutiny of the use of zinc in rubber compounds due to ecological concerns surrounding heavy metals has led to the development of environmentally friendly alternatives. Offering simular effects as traditional zinc soaps, our zinc-free product group is free of heavy metals, enabling the reduction of the total zinc content in a compound without any loss of processability or performance.

Struktol® my HT 207
  • Mixture of soaps and fatty acid esters
  • Beige pastilles

Packaging: 20 kg bags
Density: 1060 kg/m³
Melting point: 65 °C
Dosage: 1 - 3 phr

  • Improved extrusion rate and reduced mill roll sticking
  • Dispersing effect on silica fillers leading to viscosity reduction and improved flow
  • Reduced tan d in silica filled compounds

Our fatty acid derivative lubricants are multi-functional, effective in nearly all polymers regardless of the filler type used or the intended final application. They influence all essential processing properties needed for an easy and smooth production. Added at the beginning of the mixing cycle filler dispersion is improved, while best flow and release properties are achieved when adding at the end of mixing.

Struktol® my WB 16 Flakes
  • Blend of calcium soaps and amides of saturated fatty acids
  • Light yellowish pastilles

Packaging: 20 kg bags
Density: 1000 kg/m³
Melting point: 102 °C
Dosage: 1 - 3 phr

  • Process additive for nearly all kinds of polymers, especially good for mould flow and release
  • Improves the surface finish of vulcanisates
  • Has stabilising properties in CR blends